427005380 has 24 divisors (see below), whose sum is σ = 901271448. Its totient is φ = 169933568.

The previous prime is 427005331. The next prime is 427005401. The reversal of 427005380 is 83500724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37258816 + 389746564 = 6104^2 + 19742^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50249 + ... + 58128.

It is an arithmetic number, because the mean of its divisors is an integer number (37552977).

Almost surely, 2^427005380 is an apocalyptic number.

It is an amenable number.

427005380 is an abundant number, since it is smaller than the sum of its proper divisors (474266068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427005380 is a wasteful number, since it uses less digits than its factorization.

427005380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108583 (or 108581 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 427005380 is about 20664.1084975859. The cubic root of 427005380 is about 753.0279838186.

The spelling of 427005380 in words is "four hundred twenty-seven million, five thousand, three hundred eighty".